title: Moonlighting.
authors.forename: R L
authors.initials: RL
authors.lastname: Cohen
mesh_terms: D004651:Employment; D006784:Hospitals, Teaching; D006785:Hospitals, University; D006801:Humans; D007396:Internship and Residency / Q000191:economics*; D010414:Pennsylvania; D010561:Personnel Staffing and Scheduling / Q000639:trends; D000078329:Workforce